Cypress PSoC FirstTouch CY3270 Manual page 20

Technical Reference
The dedicated sensors and output devices on the FTMF Expansion Card are there to help you
quickly evaluate and experiment with a variety of PSoC applications, without having to build any
hardware. Your PSoC Express or PSoC Designer project completely determines the remaining
FTMF Expansion Card functions. Included in the kit installation are demonstration projects that use
the following input sensors:
■ CapSense slider
Temperature sensor
■
Ambient Light sensor
■
CapSense proximity sensor
■
The FTMF Expansion Card uses a standard FirstTouch expansion header for connection to the
FTPC bridge or other target hardware.
Notice that the 8x2 pin expansion header also includes four General Purpose IO connections labeled
P02-P05. These are hard wired to four unused Port 0 IO pins on the CY8C21434 host and allow you
to easily connect the FTMF Expansion Card to your specific hardware or sensors. These IO pins
were specifically chosen because they have the ability to operate as analog outputs, analog inputs,
digital inputs, digital outputs, or any combination of the four types; this pin selection makes them true
analog or digital GPIO.
Your PSoC Express project designates the specific function for these A/D GPIO pins.
20
Figure 3-3. FTMF Expansion Card Expansion Header Signals
VEXP
ISSP_XRES
ISSP_CLK
ISSP_DAT
11
13
15
NOTE: This Expansion Board Does Not Have An Onboard
Voltage Regulator - DO NOT Power With > 5Vdc
0.100" 8x2 Male
Pin Header
J1
1
VEXP_IN NC
3
GND VEXP_OUT
5
ISSP_XRES SDA-MOSI
7
ISSP_CLK SCL-SCLK
9
ISSP_DAT GPIO5
EXP_TYPE GPIO4
MISO GPIO3
SPI_nss GPIO2
8X2 PIN HDR RA
CY3270 PSoC® FirstTouch Guide, Document # 001-15945 Rev. **
VEXP
2
4
I2C_SDA
6
I2C_SCL
8
PO5
10
PO4
12
PO3
14
PO2
16